Ok so I understand most the costs from training a unit but I am not sure I fully understand one requirement.
Training a unit requires
1) gold per turn after it is created (wage)
2) Time and opportunity cost as it takes turns to build based on your production in the city
3) Special rescources or techs (a unit might need horses or metal in order to be created)
4)?????? this is the part I don't understand, when creating a unit it says I need a certain number of workforce or something like that in order to create it. I am guessing this means population. However when creating units none of my population seemed to get used up in the training process. Is the game merely asking that my population is above the workforce number requested?
Please could someone clarify exactly how it works? If we only have to reach a population number in order to create units then I would feel the current system is a touch too simple. It would make more sense to me if population was used up to create the unit. So you would lose 5 population once your unit of 5 was built. I like the idea of needing a certain "workforce" number in order to train and equip a unit during training time. This would lead to interesting economics where while training a unit your population lowers by the workforce needed to train the unit. Once the unit is trained your workforce is added back to your total poulation (minus of course the population who actually become the unit).
For example last night I went to create a new city. I decided to create a settler unit but was unsure as to what the actual cost would be. Surely setting up a new city would cost me a lot in the short run. Looking through the units creation stat sheet on the training menu I saw that there was a high workforce cost of 60 needed. Great I thought, it seems I will need to consider if I want to sacrifice 60 of my population from this city in order to create a new one. This made sense to me and felt like a cool choice to have to make as population is a key factor in reserach and gold from tax you earn each season and I would have to take a short term hit to this in order to get an new city up and running for long term gains.
Well I made my choice and started to train the settler unit. I watched my population carefully to see if it would drop straight away as I began training the unit. My population number didn't move, Infact my population proceeded to increase a small amount over the next two turns as the unit was being trained. No problem I thought, the population probally gets removed once the unit is built. Next turn the unit is built and to my suprise my population is still the same. Well this confused me no end and has lead to my posting here. I just can't wrap my head around how and why the current system works. What is the actually cost (apart from training time) of setting up a new city or outpost if we are not using up a large amount of either gold or population?